import re
 
 
data = [['company1', '<U+042E><U+043F><U+0438><U+0442><U+0435><U+0440>'], ['company2', 
 '<c1>lom<e9>kszer Kft.'], ['company3', 'Ernst and young'],
   ['company4', '<c5>bo Akademi']]
 
for index in range(len(data)):
    data[index][1] = re.sub(
        r'<(?:U\+)?((?<=\+)[0-9a-fA-F]{4}|(?<=<)[0-9a-fA-F]{2})>', 
        lambda x: chr(int(x.group(1), 16)),
        data[index][1])
 
print(data)
 
				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
				
				
				
				
				
			 
			
				
			
			
				
	
		
		
	
	
		[['company1', 'Юпитер'], ['company2', 'Álomékszer Kft.'], ['company3', 'Ernst and young'], ['company4', 'Åbo Akademi']]